Oscar f



0. F. MAYHEW- Hominv Machine.

' Patented June 2, 1857,

TRANSYERse SECTION on. LI": 1'2.

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In ran/302' Wv'lvve $565 W4 n. PETERS, Phcblflhngnpm Washing'nm meUNITED STATES PATENT OFFICE.

HOMINY-MAGHINE.

Specification of Letters Patent No. 17 ,469, dated June 2, 1857.

To all whom it may concern:

Be it known that I, OSCAR F. MAYHEW, of Indianapolis, in the county ofMarion, 1n the State of Indiana, have invented a new and usefulImprovements in Hominy-Machines; and I do hereby declare that thefollowing is a full, clear, and exact descriptlon of the constructionand operation of the same, reference being had to the annexed drawings,making part of this specificatlon, in which Figure 1 is a perspectiveview, showing the machine when ready for operation. A, is the concavesupported by the frame L, L, L; G, feed hopper; H, discharge spout; Ithe driving pulley.

. Fig. 2 is a transverse section showing the concave A, cylinder B, oneof the rings or divisions C, with the adjustable opening D, theadjusting or regulating apparatus E and screen F.

Fig. 3 is a horizontal projection of the machine when opened and thecylinder B taken out.

Fig. 4 represents the cylinder B, with beaters b, b, b, b, &c., drivingpulley I, and small pulley K for operating feed apparatus.

The concave A, may be constructed of wood lined with sheet metal, or ofmetal entirely; of the form of a frustum of a cone; divided into halveslongitudinally and into compartments formed by the rings 0, C, C, C,which have adjustable openings. rings fit closely to the cylinder (butpermit it to revolve freely) and are designed to confine the grainwithin the action of the beaters Z), Z), Z), 6, &c.

The openings D, D, D, D, through the rings or divisions O, C, C, C, aredesigned to permit the passage of the grain through the machine, thelength of time in which it'is These passing through, being regulated bythe adjusting or regulating apparatus E, the side of which forms a partof the ring or divisions G, C, C, C, and also forms a rib against theinner surfaceof the concave which may be raised or depressed by means ofthe thumb screw, this being necessary from the fact that some kinds ofgrain require much more time in hulling than others, and also that aquick motion hulls the grain more rapidly than a slow motion. The slidebeing raised retards the progress of the grain, and being depressedpermits it to pass more freely.

The grain, as it is fed into the machine at hopper G, by any suitablefeed apparatus, is driven by the heaters b, b, b, b, &c., of the rapidlyrevolving cylinder B, against the sides of the concave A, the conicalshape of which gives it an inclination toward the first ring C, throughwhich it passes by the opening D, into the second compartment where itis again operated upon by the beaters which hull and clean it as it isdriven through the adjustable opening D, D, D, D, consecutively until itis discharged through the spout H, thus feeding, hulling, cleaning anddischarging the grain by a continuous operation. 7

What I claim as my invention in the above described machine and desireto secure by Letters Patent is:

The combination and arrangement of the concave A, rings or divisions C,C, C, C, and the adjustable openings D, D, D, D, when constructed andoperated substantially as set forth.

OSCAR F. MAYHEW. Witnesses:

NATHAN T. CoFFIN, H. T. LAWTON.

